Apple has released iMovie ’11 9.0.9, a small update for the video editing app that is nearing its third birthday (the iLife ’11 suite was originally released on 20 October 2010). This update squashes a bug that prevented iMovie from recognizing video cameras connected to your Mac and improves compatibility with projects that are imported from iMovie for iOS. Finally, it also includes unspecified stability improvements. ($14.99 new from the Mac App Store, free update through Software Update or the App Store app, 1.08 GB)
Turn Off Filename Extension Warning
In Leopard, Apple fixed an annoying aspect of working with the Finder in Tiger. Previously, if you changed a file's extension, the Finder prompted for confirmation. But since no one has ever accidentally changed a filename extension, Apple thankfully added an option to turn that warning off in the Leopard Finder's preferences. Choose Finder > Preferences, and in the Advanced screen, deselect Show Warning Before Changing an Extension.